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Monarch Caterpillar
August 23, 2025 What a great surprise to find a caterpillar of a Monarch Butterfly (Danaus plexippus) on some Butterfly Weed (Asclepias tuberosa) yesterday. Quite a small caterpillar. It’s on the leaf of the Butterfly Weed, which is between 1/2 and 3/4 inch wide. The Monarch has four phases in its life; egg, larva, pupa,…
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A Fritillary
This is a caterpillar of the Variegated Fritillary (Euptoieta claudia), chomping away on a Violet (Viola) leaf, one of many host plants of this species. A few other examples of their host plants are Passion Vines, Pansies, Purslane, Flax, and Mayapple. As an adult, the Variegated Fritillary can live over 10 months. That’s a mighty…
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A Butterfly Special To Maryland
A Baltimore Checkerspot (Euphydryas phaeton) seen at Brookside Gardens in Montgomery County, Maryland. It’s the Maryland state insect. I grew up in Maryland and this, the first time I’ve ever seen this beautiful butterfly. Just a short while after seeing that butterfly I happened upon this caterpillar at Buck Hollow, in Shenandoah National Park, where…
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Baltimore Checkerspot
Baltimore Checkerspot (Euphydryas phaeton). I love so many butterflies. This is one of them. It’s the official state insect of Maryland. I was able to capture this photo of a Baltimore Checkerspot at Brookside Gardens in Wheaton, Maryland. The Baltimore Checkerspot larval host plant is White Turtlehead. If that plant is not available caterpillars will…
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Eastern Tiger Swallowtail
My first sighting this season was yesterday. The state insect of Virginia, the Eastern Tiger Swallowtail Butterfly (Papilio glaucus). Native to eastern North America. The butterfly I saw yesterday had just emerged from its chrysalis. Brand new. In the autumn an Eastern Tiger Swallowtail caterpillar will form itself into a chrysalis. NOT a cocoon but…